To understand Ni-chōme, start in the years after the Second World War. In the postwar era, the Shinjuku Two-chōme area was a red-light district. Tokyo's red-light districts had operated as legally licensed centers until the Prostitution Prevention Law was passed by the Diet in 1956, after women's groups, including Christian ones, lobbied hard for it. Around that time, the neighborhood's character began to shift. The change was gradual, and you can follow it in small details. As early as 1948, there is mention of a gay tea shop in Shinjuku. By the 1950s, gay bars were appearing in Ni-chōme, both in name and in form. By the late 1950s, the neighborhood was known for its popularity within gay subculture, and a club scene had begun to emerge. By the late 1960s, Ni-chōme had become Japan's best-known gay neighborhood, famous for its accepting attitude toward satisfying human desires. Many describe the years after 1965 as the time when themed bars, clubs and community spaces cemented its reputation as an open and inclusive place.